Convert device to std::unique_ptr

device/serial/serial_device_enumerator_linux.cc

Index: device/serial/serial_device_enumerator_linux.cc
diff --git a/device/serial/serial_device_enumerator_linux.cc b/device/serial/serial_device_enumerator_linux.cc
index b4de00cc39d7221c13d36a00bc5c27bb1c3b41c6..5b0faf21c6af4685e554f3305e372cb718847c48 100644
--- a/device/serial/serial_device_enumerator_linux.cc
+++ b/device/serial/serial_device_enumerator_linux.cc
@@ -5,6 +5,8 @@
 #include "device/serial/serial_device_enumerator_linux.h"
 
 #include <stdint.h>
+
+#include <memory>
 #include <utility>
 
 #include "base/logging.h"
@@ -25,8 +27,9 @@ const char kProductNameKey[] = "ID_MODEL";
 }  // namespace
 
 // static
-scoped_ptr<SerialDeviceEnumerator> SerialDeviceEnumerator::Create() {
-  return scoped_ptr<SerialDeviceEnumerator>(new SerialDeviceEnumeratorLinux());
+std::unique_ptr<SerialDeviceEnumerator> SerialDeviceEnumerator::Create() {
+  return std::unique_ptr<SerialDeviceEnumerator>(
+      new SerialDeviceEnumeratorLinux());
 }
 
 SerialDeviceEnumeratorLinux::SerialDeviceEnumeratorLinux() {